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AEO20B48N-6S 参数 Datasheet PDF下载

AEO20B48N-6S图片预览
型号: AEO20B48N-6S
PDF下载: 下载PDF文件 查看货源
内容描述: AEO / ALO单路输出8砖:底板或开放式框架模块 [AEO/ALO Single Output 8th Brick: Baseplate or Open-Frame Module]
分类和应用:
文件页数/大小: 26 页 / 899 K
品牌: ASTEC [ Astec America, Inc ]
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Technical Reference Notes  
AEO_ALO04/12/20/25x48 Series  
(Single Output 8th Brick)  
Input Filter for FCC Class B Conducted Noise  
A reference design for an input filter that can provide FCC Class B conducted noise levels is shown below (See Figure 61).  
Two common mode connected inductors are used in the circuit along with balanced bypass capacitors to shunt common mode  
currents into the ground plane. Shunting noise current back to the converter reduces the amount of energy reaching the input  
LISN for measurement.  
The application circuit shown has an earth ground (frame ground) connected to the converter output (-) terminal. Such a  
configuration is common practice to accommodate safety agency requirements. Grounding an output terminal results in much  
higher conducted emissions as measured at the input LISN because a hard path for common mode current back to the LISN is  
created by the frame ground. “Floating” loads generally result in much lower measured emissions. The electrical equivalent of  
a floating load, for EMI measurement purposes, can be created by grounding the converter output (load) through a suitably  
sized inductor(s) while maintaining the necessary safety bonding.  
FILTER  
PARTS LIST  
CKT CODE DESCRIPTION  
CTX01-15091  
Common  
Cooper Electronic  
Mode Choke  
Technologies  
X-Cap  
Y-Cap  
Cin  
0.47 µF X 4pcs  
22 nF X 4 pcs  
220µF X 1pc  
Figure 61: Class B Filter Circuit  
MODEL: AEO_ALO04/12/20/25x48 SERIES  
AUGUST 25, 2005 - REVISION G  
SHEET 23 OF 26  
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